Stick to popular companies like Expedia or Priceline. When using a travel search engine like Kayak, choose options from recognizable brands.

2. Don't make a hotel reservation directly through its website

According to Panda Security on Thursday, hotels often neglect their networks' online security, especially if it's privately owned. Last month, 14 Trump Hotels were hit by a data breach that exposed guests' cardholder names, account numbers, payment card expiration dates and possibly security codes. The Hard Rock Cafe & Casino franchise was also impacted by a breach from August 10, 2016 to March 9, 2017.

It's advised to make a reservation through a verified third-party site, which will often provide perks like free cancellations and breakfast.